JP5239837B2 - Package tray support structure - Google Patents

Description

  The present invention relates to a package tray support structure that is rotatably supported with respect to a vehicle body side.

As a support structure of this type of package tray, for example, the one described in Patent Document 1 below is known. A shaft portion is provided on the vehicle body side that supports the package tray, and a bearing portion that supports the shaft portion is provided on the package tray side. Thus, the package tray is supported so as to be rotatable with respect to the vehicle body side. Such a package tray is disposed on the vehicle rear side of the seat back, and by closing a gap between the seat back and the back door, it is possible to shield the luggage in the cargo compartment from the outside. The package tray can be rotated in the vertical direction around the shaft portion in conjunction with the opening / closing operation of the back door, thereby facilitating loading / unloading of the cargo into / from the cargo compartment.
Japanese Patent Laid-Open No. 9-21030

  However, when a load having a height higher than the setting position of the package tray is mounted in the luggage compartment, the package tray interferes with the load and does not return to the setting position while the rear side is inclined upward with the shaft portion as the center, The package tray protrudes outside the position of the back door when closed. In such a state, if the back door is closed, the inner wall (window) of the back door interferes with the package tray, so that the package tray is pushed forward of the vehicle and a load exceeding the elastic limit is applied to the shaft portion. As a result, the shaft may be broken.

  The present invention has been completed based on the above circumstances, and an object thereof is to reduce the load applied to the shaft portion and prevent the shaft portion from being broken.

  The present invention is a package tray support structure that supports a package tray provided in a luggage compartment of a vehicle so as to be rotatable with respect to the vehicle body side, and is provided on either the package tray side or the vehicle body side. A shaft portion that extends along the rotation axis of the tray, a bearing portion that is provided on the other side and supports the shaft portion, and extends to the bearing portion, and the shaft portion receives a predetermined amount of load that does not exceed the elastic limit. In this case, it is characterized in that it has a configuration including an extending portion that allows the shaft portion to escape in a direction in which the predetermined amount of load is reduced.

  According to such a configuration, when the package tray receives an external force and a predetermined amount of load that does not exceed the elastic limit is applied to the shaft portion, the shaft portion can be released from the bearing portion to the extending portion. For example, when a large load is loaded in the luggage compartment and the package tray is in a posture in which the rear side is inclined upward with the shaft portion as the center, when the back door is closed as it is, the inner wall of the back door is packaged. This can occur when the package tray is pushed forward of the vehicle by interfering with the tray. In such a case, the load applied to the shaft portion can be reduced by letting the shaft portion escape from the bearing portion to the extending portion, and the shaft portion can be prevented from being broken.

The following configuration is preferable as an embodiment of the present invention.
The bearing portion is constituted by a housing groove formed with a first opening capable of attaching and detaching and housing the shaft portion, and the housing groove is disposed below the housing groove when the package tray is in a horizontal posture. And the peripheral wall portion disposed on the upper side of the housing groove, and the support portion is bent and deformed in a direction away from the peripheral wall portion when pressed by the shaft portion that has received a predetermined amount of load. Thus, the shaft portion may be moved from the bearing portion to the extending portion.

  According to such a configuration, the shaft portion housed in the housing groove presses the support portion by receiving a predetermined amount of load, and the support portion bends and deforms in a direction away from the peripheral wall portion, whereby the bearing portion of the shaft portion. Movement from the extension part to the extension part is allowed.

  The extension portion has an extension groove formed with a second opening that communicates with the accommodation groove and accommodates the shaft portion, and the second opening allows a forward movement out of the extension groove. It is good also as a structure provided with the check piece which does not accept | permit the movement to the reverse direction which enters an extension groove | channel.

  According to such a configuration, it is possible to prevent the shaft portion accommodated in the accommodation groove from passing through the check piece and coming out of the extension groove, and then again passing through the check piece and entering the extension groove.

  The peripheral wall portion is disposed at a first projecting portion disposed in a connecting portion of the housing portion which is a boundary portion between the housing groove and the extension groove, and disposed closer to the first opening portion of the housing groove than the first projecting portion. The shaft portion is supported at at least three points of the support portion, the first protrusion portion, and the second protrusion portion, and the first protrusion portion is provided so as not to bend, The 2nd protrusion part is good also as a structure provided so that bending is possible.

  According to such a configuration, the shaft portion normally enters the housing groove from the first opening serving as the entrance / exit portion of the housing groove, passes through the second projecting portion, and then the support portion, the first projecting portion, and the first projecting portion. 2 is supported at at least three points of the protrusion. Here, since the second projecting portion can be bent, the shaft portion can easily pass through the second projecting portion, while the first projecting portion cannot be bent with a load less than a predetermined amount. Therefore, the shaft portion does not easily pass through the first protrusion and move to the extension groove. Further, since the operation of moving the shaft portion from the housing groove to the extension groove through the connecting portion of the housing portion depends exclusively on the elasticity of the support portion, it becomes easy to manage a predetermined amount of load.

  According to the present invention, the load applied to the shaft portion can be reduced, and the shaft portion can be prevented from being broken.

<Embodiment 1>
Embodiment 1 of the present invention will be described with reference to the drawings of FIGS. FIG. 1 is a view showing a mounting state of the package tray 10 in the present embodiment, and the package tray 10 is shown in a simplified manner. The package tray 10 is disposed above the luggage compartment 30 in the vehicle. A rear opening 40 is provided at the rear of the luggage compartment 30, and a back door (see FIG. 3) 50 that can open and close the rear opening 40 in the vertical direction is attached to the vehicle body side. The package tray 10 is used for the purpose of shielding the cargo in the luggage compartment 30 from the outside by closing the gap between the seat back of the rear seat 60 and the back door 50. In the following description, “front” refers to the front of the vehicle based on the vehicle longitudinal direction, “rear” refers to the rear of the vehicle based on the vehicle longitudinal direction, and “width direction” refers to the vehicle width direction. And

  The package tray 10 has a horizontal posture (the posture of the package tray 10 shown by a solid line in FIG. 1) and a forward leaning posture (a two-dot chain line shown in FIG. 1) with the front side as a rotation center. The rear end portion is rotatable in the vertical direction. The rear end portion of the package tray 10 and the back door 50 are connected to each other by an elongated string (not shown), and the rear end portion of the package tray 10 rotates in the vertical direction in conjunction with the opening / closing operation of the back door 50. To do. That is, when the back door 50 is opened, the package tray 10 is rotated from the horizontal posture to the forward tilted posture, and when the back door 50 is closed, the package tray 10 is rotated from the forward tilted posture to the horizontal posture.

  As shown in FIG. 2, a pair of hinge pins (an example of the “shaft portion” of the present invention) 32 are provided on the side walls 31 constituting both sides in the width direction of the luggage compartment 30. Both hinge pins 32 are integrally formed with a pair of shelves 33 formed at the top of both side walls 31. Both hinge pins 32 have a round bar shape and project toward the cargo compartment side, which is the side facing each other on the same axis. As shown in FIG. 1, both hinge pins 32 are disposed at a set position of the package tray 10 that is in a horizontal posture in the vertical direction (near the rear upper part of the seat back of the rear seat 60). The hinge pin 32 is made of a synthetic resin material such as polypropylene together with the side wall 31. A rear pillar 35 is located above the shelf 33.

  The shelf 33 is provided with a stepped portion 34 that supports the side edge in the width direction of the package tray 10 in a horizontal posture. The stepped portion 34 is formed in a length range from slightly behind the hinge pin 32 to the rear end side of the package tray 10. As shown in FIG. 2, a front end inclined surface 34 </ b> A that is inclined obliquely downward is formed at the front end portion of the stepped portion 34. The inclination angle of the front end inclined surface 34A is set to restrict the movable range of the package tray 10 in the forward inclination posture. The front end portion of the package tray 10 in the forward tilted posture can contact the front end inclined surface 34A. As a result, it is possible to prevent interference with the rear pillar 35 positioned above the shelf 33 during the rotation of the package tray 10.

  As shown in FIG. 3, a pair of hinge collars (an example of the “bearing portion” of the present invention) 20 made of a synthetic resin material is attached to both sides in the width direction on the front side of the package tray 10. Both the hinge collars 20 are pivotally supported by the above-described hinge pins 32 so that the package tray 10 can be rotated between a horizontal posture and a forward inclined posture.

  As shown in FIGS. 7 to 8, the hinge collar 20 includes a base portion 20A, a backing portion 20B, and a hinge portion 20C that connects the base portion 20A and the backing portion 20B. As shown in FIG. 8, a lock protrusion 20D protrudes from the back surface of the base portion 20A, and a locking claw 20E protrudes from a side surface of the lock protrusion 20D. On the other hand, the backing portion 20B is formed with a lock hole 20F that can be fitted to the lock protrusion 20D. Further, insertion holes (not shown) are formed through the positions corresponding to the lock holes 20 </ b> F on both sides in the width direction of the package tray 10. When the lock hole 20F and the insertion hole are arranged coaxially and the base part 20A and the backing part 20B are overlapped with the hinge part 20C as the rotation center, the lock protrusion 20D is fitted into the insertion hole and the lock hole 20F. The locking claw 20E is caught by the hole edge of the lock hole 20F and locked. Therefore, the side portion of the package tray 10 is sandwiched between the base portion 20A and the backing portion 20B, and the hinge collar 20 is attached to the package tray 10. The backing portion 20B is formed with a cutout portion that avoids interference with the back surface side of the recess 20G described below when assembled on the base portion 20A side with the hinge portion 20C as the rotation center.

  The base portion 20A has a shape recessed from the front surface side to the back surface side, and is provided with a recess 20G that accommodates the hinge pin 32. The concave portion 20G has a substantially U-shape opened downward at two locations in the front and rear, and includes an accommodation groove (an example of the “bearing portion” in the present invention) 21 and an extension groove (in the “extended portion” in the present invention) that communicate with each other. An example) 22 is comprised. The extension groove 22 extends behind the accommodation groove 21. Specifically, the accommodation groove 21 is a portion in which the hinge pin 32 is accommodated in FIG. 3 and a portion formed in front of this portion. On the other hand, the extension groove 22 is a portion formed behind the portion in which the hinge pin 32 is accommodated in FIG. In the following description, a portion of the accommodation groove 21 that opens downward is referred to as a first opening 21A of the accommodation groove 21, and a portion of the extension groove 22 that opens downward (the accommodation groove 21 of both ends of the extension groove 22). The end portion on the opposite side) is referred to as the second opening 22A of the extension groove 22, and the connecting portion 21B of the accommodation groove 21 refers to the boundary portion between the accommodation groove 21 and the extension groove 22.

  FIG. 6 is an enlarged view of the hinge collar 20 in a state in which the package tray 10 is in the forward inclined posture. When the package tray 10 is placed in a horizontal posture (see FIG. 3), an island-shaped support portion 23 is disposed on the lower side of the accommodation groove 21 and the extension groove 22, and on the upper side, A peripheral wall portion 24 is disposed. In other words, the accommodation groove 21 and the extension groove 22 are formed between the support portion 23 and the peripheral wall portion 24. The support portion 23 can be bent with a connection portion between the housing groove 21 and the back surface of the extension groove 22 as a base end portion.

  A positioning bead 25 protruding along the outer peripheral shape of the peripheral wall portion 24 is provided on the upper surface of the peripheral wall portion 24 on the surface of the base portion 20A. This positioning bead 25 is for positioning in the width direction with respect to the side wall 33 </ b> A of the shelf 33 in a state where the package tray 10 is attached to the shelf 33. Specifically, the protruding height of the positioning bead 25 is such that when the positioning bead 25 is in contact with the side wall 33A of the shelf 33, the width direction both sides of the package tray 10 are not in contact with the side wall 33A of the shelf 33. Is set to

  In the peripheral wall portion 24, a flexible projecting portion (an example of the “second projecting portion” of the present invention) 26 having flexibility is provided obliquely in front of the support portion 23. As shown in FIG. 8, the flexure protrusion 26 is formed in a doubly supported shape by forming notches 26 a on both sides in the width direction, and enters the support portion 23 side to enter the movement path of the hinge pin 32. Has been placed. In addition, the plate thickness of the bending projection 26 is substantially the same as the plate thickness of the peripheral wall 24. Thereby, the bending protrusion part 26 can be bent in the direction away from the support part 23.

  A fixed protrusion (an example of the “first protrusion” of the present invention) 27 is provided on the peripheral wall portion 24 obliquely behind the support portion 23. That is, the bending protrusion 26 is disposed on the side closer to the first opening 21 </ b> A of the accommodation groove 21 than the fixed protrusion 27. The fixed projecting portion 27 is arranged on the moving path of the hinge pin 32 by forming the peripheral wall portion 24 in the communication portion 21 </ b> B of the receiving groove 21 so as to bulge to the support portion 23 side and forming a substantially chevron shape. Further, as shown in FIG. 8, a pair of reinforcing ribs 28 having a substantially triangular plate shape are integrally provided on the back side of the fixed protrusion 27. By means of both reinforcing ribs 28, the fixed protrusion 27 does not bend and deform even when a load is applied from the hinge pin 32.

  A pair of check pieces 29 are provided in the second opening 22 </ b> A of the extension groove 22. Both the check pieces 29 are arranged to be opposed to each other on the support portion 23 side and the peripheral wall portion 24 side in the second opening 22A. Both check pieces 29 are extended in a direction away from the extension groove 22 toward the tip. As a result, the hinge pin 32 is allowed to move in the forward direction from the extension groove 22, but is not allowed to move in the reverse direction to enter the extension groove 22. Never come back.

  When the hinge pin 32 enters the receiving groove 21 from the first opening 21A of the receiving groove 21 and gets over the bending protrusion 26 while bending the bending protrusion 26, the normal position (indicated by a two-dot chain line in FIG. 6). The position of the hinge pin 32 is held. In this normal position, the hinge pin 32 is supported by at least three points of the support portion 23, the flexure projection portion 26, and the fixed projection portion 27. A contact protrusion 23 </ b> A having an elongated shape is provided on the contact surface of the support portion 23 with the hinge pin 32. For this reason, the hinge pin 32 in the regular position is indirectly contacted via the contact protrusion 23 </ b> A without directly contacting the support portion 23. In addition, an opposing protrusion 24A is provided at a position (between the bending protrusion 26 and the fixed protrusion 27) facing the contact protrusion 23A in the vertical direction on the peripheral wall 24. As a result, when the hinge pin 32 is deeply inserted between the bent protruding portion 26 and the fixed protruding portion 27, the hinge pin 32 comes into contact with the opposing protruding portion 24A.

  Now, by loading the luggage P (see FIG. 4) having a height higher than the set position of the package tray 10 in the luggage compartment 30, it may be considered that the package tray 10 does not return to the horizontal position with the forward tilted position. In such a case, when the back door 50 is to be closed, the window portion 51 of the back door 50 interferes with the rear end portion of the package tray 10 as shown in FIG. Then, the package tray 10 is pushed forward, and the load applied to the hinge pin 32 through the hinge collar 20 increases. At this time, when the hinge pin 32 receives a predetermined amount of load that does not exceed the elastic limit, the support portion 23 bends and deforms in a direction away from the fixed projection portion 27, and the interval between the support portion 23 and the fixed projection portion 27 is increased. 32 passes through the connecting portion 21 </ b> B of the accommodation groove 21, and the hinge pin 32 is accommodated in the extension groove 22 as shown in FIG. 5. Thereby, the load concerning the hinge pin 32 is reduced, and the breakage of the hinge pin 32 can be prevented in advance.

  The present embodiment is configured as described above, and its operation will be described subsequently. First, when the package tray 10 is attached to the vehicle body side, the hinge pin 32 is entered from the first opening 21 </ b> A of the accommodation groove 21. At this time, since the pair of check pieces 29 are provided in the second opening 22 </ b> A of the extension groove 22, the hinge pin 32 is not caused to enter the extension groove 22 by mistake. When the hinge pin 32 properly enters the receiving groove 21 and comes into contact with the bent protrusion 26, the package tray 10 is pushed forward to bend and deform the bent protrusion 26 and get over the bent protrusion 26. Then, as shown in FIG. 3, the hinge pin 32 is supported at at least three points of the support portion 23, the flexure projection portion 26, and the fixed projection portion 27. Further, when removing the package tray 10, the hinge pin 32 bends and deforms the protruding portion 26 by pulling the package tray 10 backward by the reverse action of the attachment, and moves to the receiving groove 21. The package tray 10 is removed from the opening 21A.

  Next, when loading a load in the luggage compartment 30, the package tray 10 is tilted forward by opening the back door 50. In this state, the rear end portion of the package tray 10 is lifted upward, and the load P having a height higher than the set position in the horizontal posture of the package tray 10 can be mounted. Then, after such a luggage P is mounted in the luggage compartment 30, if the back door 50 is closed, the package tray 10 interferes with the luggage P and cannot return to the horizontal posture. If the back door 50 is forcibly closed without noticing this, as shown in FIG. 4, the window 51 of the back door 50 interferes with the rear end of the package tray 10, and the package tray 10 is pushed forward. It is.

  At this time, the hinge pin 32 is pressed by the support portion 23 of the hinge collar 20 and the fixed protrusion 27 to increase the load, but the load applied to the hinge pin 32 reaches a predetermined amount of load that does not exceed the elastic limit of the hinge pin 32. Then, the support part 23 bends and deforms in a direction away from the fixed projecting part 27. As a result, the hinge pin 32 moves through the connecting portion 21 </ b> B of the accommodation groove 21 to the extension groove 22. Then, the load applied to the hinge pin 32 is reduced, and the hinge pin 32 can be prevented from being broken.

  Here, the clearance between the front end portion of the package tray 10 and the seat back of the rear seat 60 allows the package tray 10 to be returned from the forward inclined posture to the horizontal posture even when the hinge pin 32 is accommodated in the extension groove 22. It is set with a margin enough to For this reason, there is no possibility that the hinge pin 32 is loaded and the hinge pin 32 is broken due to interference between the front end portion of the package tray 10 and the seat back of the rear seat 60. Furthermore, when the vehicle is started as it is, since the hinge pin 32 and the hinge collar 20 are not stable, the package tray 10 also vibrates due to the vibration of the vehicle, and the package tray 10 comes into contact with the peripheral parts and makes an abnormal noise. Therefore, it can be detected that the hinge pin 32 is not in the normal position. Therefore, the hinge pin 32 can be taken out from the second opening 22 </ b> A of the extension groove 22 and set again at the normal position from the first opening 21 </ b> A of the accommodation groove 21.

  As described above, in the present embodiment, even when the package tray 10 in the forward tilted posture is pushed forward by the window portion 51 of the back door 50, the hinge pin 32 at the normal position escapes into the extension groove 22 and the hinge pin 32. Therefore, the hinge pin 32 can be prevented from being broken. At this time, since the support portion 23 bends and deforms in a direction away from the fixed protrusion 27, the hinge pin 32 can be moved to the extension groove 22 by passing between the support portion 23 and the fixed protrusion 27. Furthermore, since the fixed protrusion 27 cannot be bent, a predetermined amount of load can be freely set according to the size and shape of the support portion 23.

  Further, since the pair of check pieces 29 are provided in the second opening 22A of the extension groove 22, when the hinge pin 32 is caused to enter the first opening 21A of the accommodation groove 21, the extension groove 22 is erroneously entered. Can be regulated.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the present embodiment, the case where a load is applied to the hinge pin 32 due to the package tray 10 interfering with the back door 50 is illustrated. However, according to the present invention, for example, when performing an operation of assembling the package tray 10 A case where a load is applied to the hinge pin 32 by forcibly pushing the tray 10 or the like is also included.

  (2) In this embodiment, the hinge collar 20 is provided on the package tray 10 side and the hinge pin 32 is provided on the shelf 33 side. However, according to the present invention, the hinge pin is provided on the package tray 10 side and on the shelf 33 side. A hinge collar may be provided.

  (3) Although this embodiment illustrates the case where the package tray 10 is pushed forward, according to the present invention, the direction in which the package tray 10 is pushed may be any direction.

  (4) In the present embodiment, the portion that accommodates the hinge pin 32 is the recess 20G formed in a groove shape. However, according to the present invention, the portion that accommodates the hinge pin 32 is not necessarily the recess 20G. It is good also as a long hole penetrated in the back side of 20G, what is called a vehicle width direction. In this case, the support portion 23 may be connected to the peripheral wall portion 24 by closing the second opening 22A of the extension groove 22.

  (5) In the present embodiment, the support portion 23 is bent and deformed in a direction away from the fixed projection portion 27. However, according to the present invention, the support portion 23 may be bent in a direction away from the peripheral wall portion 24. You may set the support part 23 so that bending in an up-down direction is possible.

  (6) Although a pair of check pieces 29 are provided in this embodiment, according to the present invention, only one check piece may be provided, or three or more check pieces may be provided.

  (7) Although the fixed protrusion 27 is not bendable in the present embodiment, the fixed rib may be bendable according to the present invention.

  (8) In the present embodiment, the hinge pin 32 is supported at the three points of the support portion 23, the flexure projection portion 26, and the fixed projection portion 27. However, according to the present invention, the opposing projection portion 24A is added to the above three points. The hinge pin 32 may be supported at four points.

The perspective view which showed the attachment state of the package tray in Embodiment 1. 1 is a partially cutaway perspective view showing an enlarged hinge pin in FIG. Side view showing the package tray in a horizontal position Side view showing how the hinge pin is supported at the normal position in the package tray in the forward tilt position Side view showing a state in which the hinge pin is received in the extension groove in the package tray in the forward tilted posture Partially cutaway side view showing an enlarged view of the hinge pin moving from the normal position to the extension groove in the forwardly tilted package tray A perspective view of the hinge collar before it is attached to the package tray as seen from the front. A perspective view of the hinge collar before it is attached to the package tray as seen from the back side

Explanation of symbols

10 ... Package tray 21 ... Housing groove (bearing part)
21A ... 1st opening part 21B ... Communication part 22 ... Extension groove (extension part)
22A ... 2nd opening part 23 ... Supporting part 24 ... Peripheral wall part 26 ... Deflection protrusion part (2nd protrusion part)
27: Fixed protrusion (first protrusion)
29 ... Check piece 30 ... Cargo compartment 32 ... Hinge pin (shaft)
33 ... Shelves (car body)

Claims (3)

A package tray support structure that rotatably supports a package tray provided in a luggage compartment of a vehicle with respect to a vehicle body side,
A shaft portion provided on either the package tray side or the vehicle body side and extending along a rotation axis of the package tray;
A bearing portion provided on the other side and supporting the shaft portion;
An extension portion that extends to the bearing portion, and when the shaft portion receives a predetermined amount of load that does not exceed an elastic limit, extends the shaft portion in a direction that reduces the predetermined amount of load ,
The bearing portion is configured by a receiving groove in which a first opening that can attach and detach and receive the shaft portion is formed, and the receiving groove is provided below the receiving groove when the package tray is in a horizontal posture. It is formed between the arranged support part and the peripheral wall part arranged on the upper side of the housing groove,
When the support portion is pressed by the shaft portion that receives the predetermined amount of load, the support portion is bent and deformed in a direction away from the peripheral wall portion, thereby moving the shaft portion from the bearing portion to the extending portion. Support structure for the package tray. The extension portion has an extension groove formed with a second opening portion that communicates with the accommodation groove and accommodates the shaft portion, and the second opening portion has a forward direction extending from the extension groove. The support structure for a package tray according to claim 1, further comprising a check piece that allows movement but does not allow movement in the reverse direction into the extension groove. The peripheral wall portion is closer to the first opening of the receiving groove than the first protruding portion disposed at the connecting portion of the receiving groove, which is a boundary portion between the receiving groove and the extension groove. And the shaft portion is supported at at least three points of the support portion, the first protrusion portion, and the second protrusion portion, and the first protrusion portion. The support structure for a package tray according to claim 2, wherein the second protrusion is provided so as to be able to bend, while the second protrusion is provided so as not to bend.

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